Low wages and supermarket price wars are keeping retail sales subdued, but non-mining states are maintaining momentum.
Retail spending rose 0.2 per cent in May, official figures show, which missed economists' expectations of a 0.3 per cent rise.
Total retail spending was $25.02 billion in May, up from $24.98 billion in April.
Commonwealth Bank economist Gareth Aird said the result was disappointing against a backdrop of heightened consumer confidence following May's rate cut by the Reserve Bank.
"In isolation, both these factors would normally point to a lift in sales momentum," he said in a note.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"But other larger forces are at work. There is currently a distinct lack of price pressures in the retail sector and this is being both influenced and compounded by soft wages growth. As a result, retail trade growth has limped along in recent months."
However, National Australia Bank economist Tapas Strickland said headline number hid momentum in retail sales growth in non-mining states, particularly NSW and Victoria.
"That strength was offset by weakness coming from the mining states which are experiencing tough economic conditions as the mining investment boom unwinds," he added.
He said year-to-May retail sales in the non-mining states grew at 4.9 per cent, above the national rate of 3.4 per cent, and well above the mining state rate of 0.8 per cent.
JP Morgan economist Ben Jarman said, while retail sales had declined, consumer spending was stronger than the figures suggested.
"But the weakness of the retail data still are instructive, in highlighting the competitive pressure and deflationary forces hitting local retailers," he said in a note.
"Household income growth is constrained, and local retailers are fighting for their slice of a relatively fixed pie against incoming foreign entrants and a growing services sector."
